UY is a series who, despite using anthropomorphic animals, is pretty much rooted in historical feudal Japan, with events that took place in real life serving as most of the inspiration. However, Japan is also a country with a rich mythology, and Usagi couldn't shy away from exploring those more fantastic tales.

At first, the bunny ronin himself would face supernatural threats, but they didn't quite fit the tone of his series. When Stan introduced Sasuké the Demon Queller in Usagi Yojimbo (v.3) #37: "Kumo", things got different. Now he had a character better suited to fight supernatural beings and add that element organically into the Usagiverse.

There has never been a conclusive origin story as to how Sasuké came to be, but the best explanation we've got so far is in the beautifully-illustrated 25th-anniversary special edition "Yokai". It is a canon one-off in which monsters of folklore (yokai) come to haunt the Earth in a sort of mega-Halloween. It's over 60 pages long but I'll stick to the usual 8 scans to focus more on Sasuké himself.

If I had to bet on a spinoff series from Usagi Yojimbo I think it'd be either Sasuké or, according to polls taken by the author himself, the most popular supporting character and my next and last profile: Inspector Ishida.

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